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2. — (3rd edn 1830), The Encyclopaedia Logic (trans. T.F. Geraets et al., (Indianapolis: Hackett, 1991).
3. Marx, K. (1867), Capital, Vol. I (trans. B. Fowkes) (Harmondsworth: Penguin, 1976).
4. — (1885), Capital, Vol. II (trans. D. Fernbach) (Harmondsworth: Penguin, 1978).
5. — (1894), Capital Vol. III (trans. D. Fernbach) (Harmondsworth: Penguin, 1981).